Worth it to upgrade from i5-4430 to i5-6500 (HTPC)

alcoholbob

Diamond Member
May 24, 2005
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Right now I have a i5-4430 in a Silverstone "Sugo" SG13 case with a Noctua L9i cooler, a GTX 960 4GB, 16GB of DDR3 RAM, and a Silverstone SS-F520 Fanless PSU.

The Noctua L9i is about the tallest cooler my case can take. I tried a Noctua L9x65 and it was too tall by about an inch (bumps into the PSU). This system sits in an Media Center that only has 8.25" of clearance, so the SG13 case is perfect.

My problem is currently my CPU idles at about 50-55C, and during very light gaming/SNES emulation/light 2d/3d gaming the CPU hits around 75-80C, which I believe starts to cause Haswell to start thermally throttling.

I'm looking to improve my thermals at this point. My two options seem to be:

1) buy a i5-6500/mini ITX mobo/RAM combo for around $360 and sell my 4430/DDR3 RAM/Mobo for around $200, which would mean I would have a CPU that runs maybe 5-7C cooler typically at the same or better performance, so total upgrade cost would be about $160ish.

2) buy a new HTPC case with the maximum clearance I can get (maybe an 8" tall case) and use a slightly taller cooler, either the L9X65 or something else (maybe a Cryorig R1). Either way it's still going to be a low profile cooler, just possibly something 10-20mm taller (and better performing) than the L9i I'm currently use. Cost here would vary, but I'm guessing at bare minimum a 8" tall SG13 alternative case would be something like the Antec ISK600 at around $80 shipped + the cost of a slightly taller/higher performing low profile fan at around $60 = $140 upgrade cost.

So the choices are slightly cooler CPU or slightly bigger case and taller fan. Or should I not bother and just let this thing run on fumes until 10nm CPUs come out? The only thing I really do is play some console ports or emulators on this thing and watch movies.
 

wilds

Platinum Member
Oct 26, 2012
2,059
674
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Broadwell C runs cooler than Haswell and should be a drop in replacement for your Haswell.

If you are happy with your current performance and acoustics you probably don't need to do a thing. If your maximum temperature is indeed 80C, that is below the throttling point (unless you mean tcase). If you don't need any moreperformance, have you tried disabling turbo boost for lower temps?
 

LTC8K6

Lifer
Mar 10, 2004
28,520
1,575
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You can use the 4430 in another project with better cooling, or sell it.
 

alcoholbob

Diamond Member
May 24, 2005
6,372
438
126
Thanks guys, seems like Turbo boost was the issue. I have one of those motherboards that overclocks every core when turbo boost is enabled. Turning it off dropped me down from 3.2 on all cores to 3.0 but my temps have gone down around 5-7C on average. So during light gaming I'm only around 67-69C now which is a pretty good improvement.
 

LTC8K6

Lifer
Mar 10, 2004
28,520
1,575
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80c is no problem for that CPU - it shouldn't throttle until 100c. I wouldn't bother changing anything.

Also, for what it's worth the L9i is rated for 95w CPUs:

http://noctua.at/en/nh_l9i_tdp_guidelines

65W

http://noctua.at/en/nh-l9i

Caution: The NH-L9i is a highly-compact low-profile quiet cooler designed for use in small form factor cases and HTPC environments. While it provides first rate performance in its class, it is not suitable for overclocking and should be used with care on CPUs with more than 65W TDP (Thermal Design Power). Please consult our TDP guidelines to find out whether the NH-L9i is recommended for your CPU.
 

LTC8K6

Lifer
Mar 10, 2004
28,520
1,575
126
Thanks guys, seems like Turbo boost was the issue. I have one of those motherboards that overclocks every core when turbo boost is enabled. Turning it off dropped me down from 3.2 on all cores to 3.0 but my temps have gone down around 5-7C on average. So during light gaming I'm only around 67-69C now which is a pretty good improvement.

50C idle is pretty high. Is Windows set to High Performance?
 

Yuriman

Diamond Member
Jun 25, 2004
5,530
141
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For what it's worth, I have an L9i in the PC in my signature. I'm able to hit up to around 4.5ghz with it, and I can go up to around 4.3ghz and stay under 80c with an AVX load, such as Prime95 v28.

Again, 80c is not an issue for that CPU. It will likely happily run at 80-90c for longer than anything else in the machine will last. 80c will not cause throttling.